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G. W. GLAZIER & A. G. POTTER.

PAPER EOE-MACHINE. No. 261.846.

Patented Aug. 1, 1882.

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UNITED STATES PATENT OFFICE.

GEORGE W. GLAZIER, OF sALEM, AND ALBERT G. POTTER, OF LYNN, MASS.

' PAPER-BOX, MACHINE.

SPECIFICATION forming part of Letters Patent No. 261,846, dated August 1, 1882.

Application filed February 17, 1882' (No model.)

.To all whom it may concern."

Be it known that we, GEORGE W. GLAZIER, a citizen of the United States, residing at Salem, in the county of Essex and State of Massachusetts, and ALBERT G. POTTER, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have jointly invented certain new and useful Improvements in Paper-Box Machines; and we do hereby declare that the same are fully described in the following specification and illustrated in the accompanying drawings.

Thisinvention relates to improvementsin paper-box machines; and it consists, first, in the combination with the up-and-down-movable resser-head, of a horizontally-movable boxrest,which is automatically brought forward to permit the box to be made to be placed on it,

after which itis automatically moved backward beneath the vertically-movable presser-head,

, which then descends and unites the previously cemented, glued, or pasted corners of the box by pressure between the under side of the said head and a'former resting loosely on the top of the horizontally-movable box-rest, and in this manner we are able to reduce the throw of the presser-head considerably, and also to enable the box to be manipulated with greater ease and to better advantage in placing it on the box-rest and removing it therefrom when pressed, as compared with box-machines in which the box-rest is held stationary.

The invention. is carried out as follows, reference being had to the accompanying drawings, in which- Figure 1 represents a plan view, and Fig. 2 represents a front elevation,of the improved paper-box machine. Fig. 3 represents a central longitudinal section on the line A B, shown in Fig. 2. Fig. 4. represents a plan view of the improved former; and Fig. 5 represents a cross-section on the line C 1), shown in Fig. 4.

Similarletters refer to similar parts wherever they occur on the different parts of the drawlngs.

a. a represent the frame of a boxmachine, with its stationary plate or table I), and vertically-movin g presser-head 0, having the downward-projectin g rods d d, which pass through hearings in the table b, and have lower guides, e e, in the usual manner.

in bearings in the frames (ta, and provided with crank g, to which the rear end of the link his hinged, the forward end of the latter being hinged at thejunetioil of the knuckle-jointed levers t and la, the former being hinged at its upper end to the under side of the stationary table b and the latter being hinged at its lower end to the cross-barf in the ordinary manner. We wish here to state that we do not claim as our invention such connecting mechanism from the driving-shaft g to the vertically-movable presser-head c, and such connecting mechanism may be changed without departing from the spirit of our invention.

it is a treadle attached to lower end of lever 70, as shown in dotted lines in Fig. 3, in case it is desired to operate the presser mechanism with foot-power.

l is the horizontally-movable box-rest, and l is its sole-plate, attached to it or made in one piece with it, as may be desired.

m m are guides on the top of the table b, in which the sole-plate Z is guided in its forward and backward motion.

a is an eccentric or cam on the driving-shaft g, which actuates the lever 0, secured to the rock-shaft 17, located in bearings in the frames at a.

qis another rocking lever secured to the rockshaft 12, the upper end of said-lever q being jointed to the rear of the sole-plate l by means of the intermediate link r, as shown in Fig. 3. A spring, 8, secured at one end to the rocking lever 0 and at its other end to the lower front part of the frame a, serves the purpose of moving the box-rest Z backward to a position below the presser-head c after it has been moved forward by the connecting mechanism from the rotary shaft 9 to the sole-plate l, as above described.

We do not wish to confine ourselves to the above described connecting mechanism for sliding the box-rest Z forward and back, as this may be changed without departing from the essence of our invention.

The laterally expansive and adjustable former is fully shown in Figs. 4 and 5, and it consists of a lower guide-plate, t, which is adapted IOC to rest loosely on the top of the box-rest l, having for this purpose projections t t on its under side to fit in corresponding recesses on the top of the rest Z.

uu are the laterally-adjustable parts composing the former, which parts are adjusted outandinbymeansofthe right-and-left-handed screw 0, working in the screw-threaded ears u! u on the under side of the plates u u, as shown in Figs. 4 and 5. A groove, u, is made on the under side of the plates u a, into which the guide-rib t on the top of plate t'is fitted to serve as a guide for the parts a u,when moved in or out. It will thus be seen that by moving the parts u u out or in they may be adjusted to fit any desired size of box that is being made, and thus dispense with separate plates for each size of box.

w in Fig. 3 represents a box in process of being pressed on the machine.

The operation of the machine is as follows: The plates u u are first adjusted to the required width of the inside of the box that is being made, and placed on the box-rest l, as shown in Fig. 3. The machine is then set in operation, and the pasted or cemented or glued box is put upon the former in a position as shown in Fig. 3, when the rest I is in its forward position, after which the latter and the box to upon it are automatically moved back beneath the presser-head c,which then descends and presses the glued or pasted parts of the box together, after which the head 0 ascends, the rest lmoves forward to allow the operator to remove the finished box to and to replace it with another one to be finished, and so on.

What we wish to secure by Letters Patent, and claim, is

1. .In a paper box machine, the verticallymovable head 0, in combination with the horizontally-movable box-rest land automatic connecting mechanism, substantially as described, for operating said head and boxrest in a manner and for the purpose set forth.

2. In a paper box machine, the expansive former, as described, consisting of guide-plate t, and laterally-adjustable plates u u, having right and left screw-threaded cars a u, in combination with the right-and-left-handed screw '0 'v, as and for the purpose set forth.

In testimony whereof we have affixed our sigmatures in presence of two witnesses.

GEORGE W. GLAZIER. ALBERT Gr. POTTER.

Witnesses:

ALBAN ANDREN, BENJAMIN POTTER. 

